May 18, 2012- As ThinkProgress documented this week, both of the “non-citizens” shown in James O’Keefe’s latest video sting supposedly committing voter fraud by participating in American elections are actually American citizens.

Following our stories, ThinkProgress readers confronted O’Keefe with these facts on his Facebook page. The conservative filmmaker refused to acknowledge that the two “non-citizens” he smeared in his video, Zbigniew Gorzkowski and William Romero, are actually American citizens, demanding “official documentation that proves otherwise” before he’d correct his story.

Romero’s family provided this official documentation to ThinkProgress last night. Here is a scanned copy of Romero’s certificate of naturalization, issued on February 4, 2011. Redactions are ours:

To refresh, O’Keefe’s “proof” that Romero had committed voter fraud was that he refused jury duty in 2010 for not being a citizen but then registered to vote on December 5, 2011, as though there was no possible way his citizenship status could have changed in the interim year.